I did this the first time the other day. I just used independence to deactivate it. Then itunes would not recognize my phone, so I docked my phone and put it into restore mode. itunes recognized it, and I held "option" on my keypad while i clicked the restore option. It then asked me what firmware I wanted to restore to, I picked the 1.1.1 firmware on my desktop(downloaded from the downloads section of this site). It installed the 1.1.1 firmware. Phone was not activated, so I used the "out of the box" guide to unlock and install appsnapp. You know,,, the emergency dial guide. Then I used anysim to unlock. Hope this helps.